RT Journal Article
SR Electronic
T1 Prevalence of femoroacetabular impingement syndrome among young and middle-aged Caucasian adults
JF The Journal of Rheumatology
JO J Rheumatol
FD The Journal of Rheumatology
SP jrheum.190345
DO 10.3899/jrheum.190345
A1 Jacek A  Kopec
A1 Qian Hong
A1 Hubert Wong
A1 Charlie J  Zhang
A1 Charles Ratzlaff
A1 Jolanda Cibere
A1 Linda C  Li
A1 Helen Prlic
A1 David R  Wilson
A1 Bruce B  Forster
A1 John M  Esdaile
YR 2019
UL http://www.jrheum.org/content/early/2019/10/28/jrheum.190345.abstract
AB Objective The purpose of the study was to determine the prevalence of femoroacetabular impingement syndrome (FAIS) in Caucasian adults 20 to 49 years of age. Methods Participants were Caucasian men and women aged 20-49, recruited through random digit dialing from the population of Metro Vancouver, Canada. Participants filled out a self-administered questionnaire and underwent a physical examination and x-rays of both hips. FAIS was defined as a combination of hip symptoms, physical signs of impingement, and radiological findings of cam or pincer morphology as recommended by the Warwick Agreement. All analyses were weighted to reflect the population from which the sample was drawn. Results Data were obtained for 500 participants. In the study population, 48.9% were males and the age distribution was 32.2%, 31.4% and 36.4% in the groups 20-29, 30-39 and 40-49 years, respectively. The physical signs of impingement correlated significantly with symptoms but there was no significant association between either symptoms or physical examination with radiographic findings. Femoroacetabular impingement syndrome on either side was found in 3.0% (95% confidence interval 1.5-4.5) of the population. Conclusion In this study, femoroacetabular impingement syndrome was present in 3% of Caucasians ages 20-49. Further research is needed to develop consistent criteria for assessing hip symptoms, physical signs, and hip joint morphology, and to better understand the relationships between them.